Improvement in pump-valves



E. LANNAY. PUMP-VALVES.

Patented. Aug.14,1877.

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Illllllll lllllll UNITED STATES PATENT OFFICE.

EDWARD LANNAY, OF LIMA, OHIO.

IMPROVEMENT IN PUMP-VALVES.

Specification forming part of Letters Patent No. 194,252. dated August14, 1877; application filed June 7, 1877.

To all whom it may concern:

Be it known that I, EDWARD LANNAY, of

Pumps and other Conduits, of which the following is a specification:

This is an improved construction of those valves about which the casingor chamber is cast 5 and myimprovement consists in forming such valvesof simple separate disks confined and guided by the inclosing walls ofthe casing-chamber alone.

In the accompanying drawings, Figure 1 is an upper'side perspectiveview. Fig. 2 is a vertical section.

My valves A are simple cast-metal disks, and, when itis desired-tocombine them with the casing, said valves are deposited in the mold,and, being enveloped in the sand or core, the casing B is cast-aroundthem.

The core used is of such form and dimensions as to afiord chambers 11,which constitute guides to the valves in their play within the pump.These chambers communicate with the conduits above and below themthrough suitable apertures, c.

Although designed more particularly for the class of double-actingforce-pumps which possess a tubular piston-rod that constitutes thewater-discharge, and of which that patented on the 3d day of January,1865, to A. H. Pickering, is a type, my invention is applicable to agreat variety of submerged pumps.

I claim as new and of my invention- The detachable pump-valve casing Band the permanently-inclosed disksA A, confined and guided by thechambers b b of the casing, as and for the purpose set forth.

In testimony of which invention I hereunto set my hand.

EDWARD LANNAY.

Attest:

GEO. H. KNIGHT, O. W. SMITH.

